3A2 is an antibody raised against human chorionic gonadotropin and recognizes a linear epitope on the C-terminal peptide of the human chorionic gonadotropin beta-subunit. Its three-dimensional structure has been determined to 2-A resolution using molecular replacement and refined to a conventional R-factor of 18.2%. The protein exhibits the typical immunoglobulin fold, and the model contains 94...

background: the direct effect of hcg on the human endometrium was studied several times. objective: the objectives of this study were to evaluate the effectiveness of intrauterine injection of recombinant human chorionic gonadotropin (rhcg) before embryo transfer (et). materials and methods: in this randomized placebo-controlled clinical trial, a total number of 182 infertile patients undergoin...

The carbohydrate structure of the O-glycosidicallylinked oligosaccharide chains in P-subunit of human chorionic gonadotropin (hCG$) and their precise number and locations in the polypeptide chains have been determined. A homogeneous preparation of the O-glycosidic oligosaccharide was obtained from NaOH/ NaBH,-treated human chorionic gonadotropin by chromatography on Dowex 50 and Sephadex G-25 a...

A 22 years old lady was admitted because of progressive dyspnea, severe abdominal protrusion and lower extremity edema. She had undergone ovarian hyperstimulation for primary infertility by Clomiphen and Human chorionic gonadotropin for 3 months. Abdominopelvic ultrasonography revealed bilateral enlarged multi cystic ovaries and massive ascites. Transesophageal echocardiography revealed a large...

A case-control study was carried out on mothers of boys with undescended testis to investigate the hypotheses that raised maternal levels of oestrogen or reduced levels of human chorionic gonadotrophin in early pregnancy might be factors in the environment of the fetus associated with this condition. No significant difference in the levels of either of these hormones was found, though, if anyth...